include/wx/object.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/object.h
   3 // Purpose:     wxObject class, plus run-time type information macros
   4 // Author:      Julian Smart
   5 // Modified by: Ron Lee
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1997 Julian Smart and Markus Holzem
   9 //              (c) 2001 Ron Lee <ron@debian.org>
  10 // Licence:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13 #ifndef _WX_OBJECTH__
  14 #define _WX_OBJECTH__
  15
  16 #ifdef __GNUG__
  17 #pragma interface "object.h"
  18 #endif
  19
  20 // ----------------------------------------------------------------------------
  21 // headers
  22 // ----------------------------------------------------------------------------
  23
  24 #include "wx/defs.h"
  25 #include "wx/memory.h"
  26
  27 class WXDLLEXPORT wxObject;
  28
  29 #if wxUSE_DYNAMIC_CLASSES
  30
  31 // ----------------------------------------------------------------------------
  32 // conditional compilation
  33 // ----------------------------------------------------------------------------
  34
  35 // this shouldn't be needed any longer as <wx/msw/private.h> does it but it
  36 // doesn't hurt neither
  37 #ifdef GetClassName
  38 #undef GetClassName
  39 #endif
  40 #ifdef GetClassInfo
  41 #undef GetClassInfo
  42 #endif
  43
  44 class WXDLLEXPORT wxClassInfo;
  45 class WXDLLEXPORT wxHashTable;
  46 class WXDLLEXPORT wxObjectRefData;
  47
  48 #if wxUSE_STD_IOSTREAM && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT)
  49     #include "wx/ioswrap.h"
  50 #endif
  51
  52
  53 // ----------------------------------------------------------------------------
  54 // wxClassInfo
  55 // ----------------------------------------------------------------------------
  56
  57 typedef wxObject *(*wxObjectConstructorFn)(void);
  58
  59 class WXDLLEXPORT wxClassInfo
  60 {
  61 public:
  62     wxClassInfo( const wxChar *className,
  63                  const wxChar *baseName1,
  64                  const wxChar *baseName2,
  65                  int size,
  66                  wxObjectConstructorFn ctor )
  67         : m_className(className)
  68         , m_baseClassName1(baseName1)
  69         , m_baseClassName2(baseName2)
  70         , m_objectSize(size)
  71         , m_objectConstructor(ctor)
  72         , m_baseInfo1(0)
  73         , m_baseInfo2(0)
  74         , m_next(sm_first)
  75         { sm_first = this; }
  76
  77     ~wxClassInfo()
  78     {
  79         if (sm_first == this)
  80         {
  81             sm_first = m_next;
  82         }
  83         else
  84         {
  85             wxClassInfo * info = sm_first;
  86             while (info)
  87             {
  88                 if (info->m_next == this)
  89                 {
  90                     info->m_next = m_next;
  91                     break;
  92                 }
  93                 info = info->m_next;
  94             }
  95         }
  96     }
  97
  98     wxObject *CreateObject() { return m_objectConstructor ? (*m_objectConstructor)() : 0; }
  99
 100     const wxChar       *GetClassName() const { return m_className; }
 101     const wxChar       *GetBaseClassName1() const { return m_baseClassName1; }
 102     const wxChar       *GetBaseClassName2() const { return m_baseClassName2; }
 103     const wxClassInfo  *GetBaseClass1() const { return m_baseInfo1; }
 104     const wxClassInfo  *GetBaseClass2() const { return m_baseInfo2; }
 105     int                 GetSize() const { return m_objectSize; }
 106
 107     wxObjectConstructorFn      GetConstructor() const { return m_objectConstructor; }
 108     static const wxClassInfo  *GetFirst() { return sm_first; }
 109     const wxClassInfo         *GetNext() const { return m_next; }
 110     static wxClassInfo        *FindClass(const wxChar *className);
 111
 112         // Climb upwards through inheritance hierarchy.
 113         // Dual inheritance is catered for.
 114
 115     bool IsKindOf(const wxClassInfo *info) const
 116     {
 117         return info != 0 &&
 118                ( info == this ||
 119                  ( m_baseInfo1 && m_baseInfo1->IsKindOf(info) ) ||
 120                  ( m_baseInfo2 && m_baseInfo2->IsKindOf(info) ) );
 121     }
 122
 123         // Initializes parent pointers and hash table for fast searching.
 124
 125     static void     InitializeClasses();
 126
 127         // Cleans up hash table used for fast searching.
 128
 129     static void     CleanUpClasses();
 130
 131 public:
 132     const wxChar            *m_className;
 133     const wxChar            *m_baseClassName1;
 134     const wxChar            *m_baseClassName2;
 135     int                      m_objectSize;
 136     wxObjectConstructorFn    m_objectConstructor;
 137
 138         // Pointers to base wxClassInfos: set in InitializeClasses
 139
 140     const wxClassInfo       *m_baseInfo1;
 141     const wxClassInfo       *m_baseInfo2;
 142
 143         // class info object live in a linked list:
 144         // pointers to its head and the next element in it
 145
 146     static wxClassInfo      *sm_first;
 147     wxClassInfo             *m_next;
 148
 149     // FIXME: this should be private (currently used directly by way too
 150     //        many clients)
 151     static wxHashTable      *sm_classTable;
 152
 153 private:
 154     // InitializeClasses() helper
 155     static wxClassInfo *GetBaseByName(const wxChar *name);
 156
 157     DECLARE_NO_COPY_CLASS(wxClassInfo)
 158 };
 159
 160 WXDLLEXPORT wxObject *wxCreateDynamicObject(const wxChar *name);
 161
 162 // ----------------------------------------------------------------------------
 163 // Dynamic class macros
 164 // ----------------------------------------------------------------------------
 165
 166 #define DECLARE_DYNAMIC_CLASS(name)           \
 167  public:                                      \
 168   static wxClassInfo sm_class##name;          \
 169   virtual wxClassInfo *GetClassInfo() const   \
 170    { return &name::sm_class##name; }
 171
 172 #define DECLARE_ABSTRACT_CLASS(name) DECLARE_DYNAMIC_CLASS(name)
 173 #define DECLARE_CLASS(name) DECLARE_DYNAMIC_CLASS(name)
 174
 175 // -----------------------------------
 176 // for concrete classes
 177 // -----------------------------------
 178
 179     // Single inheritance with one base class
 180
 181 #define IMPLEMENT_DYNAMIC_CLASS(name, basename)                 \
 182  wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name()          \
 183   { return new name; }                                          \
 184  wxClassInfo name::sm_class##name(wxT(#name), wxT(#basename),   \
 185             0, (int) sizeof(name),                              \
 186             (wxObjectConstructorFn) wxConstructorFor##name);
 187
 188     // Multiple inheritance with two base classes
 189
 190 #define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2)    \
 191  wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name()          \
 192   { return new name; }                                          \
 193  wxClassInfo name::sm_class##name(wxT(#name), wxT(#basename1),  \
 194             wxT(#basename2), (int) sizeof(name),                \
 195             (wxObjectConstructorFn) wxConstructorFor##name);
 196
 197 // -----------------------------------
 198 // for abstract classes
 199 // -----------------------------------
 200
 201     // Single inheritance with one base class
 202
 203 #define IMPLEMENT_ABSTRACT_CLASS(name, basename)                \
 204  wxClassInfo name::sm_class##name(wxT(#name), wxT(#basename),   \
 205             0, (int) sizeof(name), (wxObjectConstructorFn) 0);
 206
 207     // Multiple inheritance with two base classes
 208
 209 #define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2)   \
 210  wxClassInfo name::sm_class##name(wxT(#name), wxT(#basename1),  \
 211             wxT(#basename2), (int) sizeof(name),                \
 212             (wxObjectConstructorFn) 0);
 213
 214 #define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS
 215 #define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2
 216
 217 // -----------------------------------
 218 // for pluggable classes
 219 // -----------------------------------
 220
 221     // NOTE: this should probably be the very first statement
 222     //       in the class declaration so wxPluginSentinel is
 223     //       the first member initialised and the last destroyed.
 224
 225 // _DECLARE_DL_SENTINEL(name) wxPluginSentinel m_pluginsentinel;
 226
 227 #if wxUSE_NESTED_CLASSES
 228
 229 #define _DECLARE_DL_SENTINEL(name, exportdecl)  \
 230 class exportdecl name##PluginSentinel {         \
 231 private:                                        \
 232     static const wxString sm_className;         \
 233 public:                                         \
 234     name##PluginSentinel();                     \
 235     ~name##PluginSentinel();                    \
 236 };                                              \
 237 name##PluginSentinel  m_pluginsentinel;
 238
 239 #define _IMPLEMENT_DL_SENTINEL(name)                                \
 240  const wxString name::name##PluginSentinel::sm_className(#name);    \
 241  name::name##PluginSentinel::name##PluginSentinel() {               \
 242     wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name);   \
 243     if( e != 0 ) { e->RefObj(); }                                      \
 244  }                                                                  \
 245  name::name##PluginSentinel::~name##PluginSentinel() {            \
 246     wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name);   \
 247     if( e != 0 ) { e->UnrefObj(); }                                 \
 248  }
 249 #else
 250
 251 #define _DECLARE_DL_SENTINEL(name)
 252 #define _IMPLEMENT_DL_SENTINEL(name)
 253
 254 #endif  // wxUSE_NESTED_CLASSES
 255
 256 #define DECLARE_PLUGGABLE_CLASS(name) \
 257  DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLEXPORT)
 258 #define DECLARE_ABSTRACT_PLUGGABLE_CLASS(name)  \
 259  DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLEXPORT)
 260
 261 #define DECLARE_USER_EXPORTED_PLUGGABLE_CLASS(name, usergoo) \
 262  DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name, usergoo)
 263 #define DECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, usergoo)  \
 264  DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name, usergoo)
 265
 266 #define IMPLEMENT_PLUGGABLE_CLASS(name, basename) \
 267  IMPLEMENT_DYNAMIC_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name)
 268 #define IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 269  IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name)
 270 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename) \
 271  IMPLEMENT_ABSTRACT_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name)
 272 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 273  IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name)
 274
 275 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(name, basename) \
 276  IMPLEMENT_PLUGGABLE_CLASS(name, basename)
 277 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 278  IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)
 279 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, basename) \
 280  IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename)
 281 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 282  IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)
 283
 284
 285 #define CLASSINFO(name) (&name::sm_class##name)
 286
 287 #else // !wxUSE_DYNAMIC_CLASSES
 288
 289     // No dynamic class system: so stub out the macros
 290
 291 #define DECLARE_DYNAMIC_CLASS(name)
 292 #define DECLARE_ABSTRACT_CLASS(name)
 293 #define DECLARE_CLASS(name)
 294 #define IMPLEMENT_DYNAMIC_CLASS(name, basename)
 295 #define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2)
 296 #define IMPLEMENT_ABSTRACT_CLASS(name, basename)
 297 #define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2)
 298 #define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS
 299 #define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2
 300
 301 #define DECLARE_PLUGGABLE_CLASS(name)
 302 #define DECLARE_ABSTRACT_PLUGGABLE_CLASS(name)
 303 #define IMPLEMENT_PLUGGABLE_CLASS(name, basename)
 304 #define IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)
 305 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename)
 306 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)
 307
 308 #define DECLARE_USER_EXPORTED_PLUGGABLE_CLASS(name, usergoo)
 309 #define DECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, usergoo)
 310 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(name, basename)
 311 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(name, basename1, basename2)
 312 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, basename)
 313 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)
 314
 315 #endif // wxUSE_DYNAMIC_CLASSES
 316
 317
 318 #define wxIS_KIND_OF(obj, className) obj->IsKindOf(&className::sm_class##className)
 319
 320 // Just seems a bit nicer-looking (pretend it's not a macro)
 321 #define wxIsKindOf(obj, className) obj->IsKindOf(&className::sm_class##className)
 322
 323 // to be replaced by dynamic_cast<> in the future
 324 #define wxDynamicCast(obj, className) \
 325  (className *) wxCheckDynamicCast((wxObject*)(obj), &className::sm_class##className)
 326
 327 // The 'this' pointer is always true, so use this version
 328 // to cast the this pointer and avoid compiler warnings.
 329 #define wxDynamicCastThis(className) \
 330  (IsKindOf(&className::sm_class##className) ? (className *)(this) : (className *)0)
 331
 332 #define wxConstCast(obj, className) ((className *)(obj))
 333
 334
 335 #ifdef __WXDEBUG__
 336 inline void wxCheckCast(void *ptr)
 337 {
 338     wxASSERT_MSG( ptr, _T("wxStaticCast() used incorrectly") );
 339 }
 340 #define wxStaticCast(obj, className) \
 341  (wxCheckCast(wxDynamicCast(obj, className)), ((className *)(obj)))
 342
 343 #else  // !__WXDEBUG__
 344 #define wxStaticCast(obj, className) ((className *)(obj))
 345
 346 #endif  // __WXDEBUG__
 347
 348
 349 // for some reason Borland seems to need this include.
 350 #if wxUSE_STD_IOSTREAM                                \
 351     && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT)  \
 352     && defined(__BORLANDC__)
 353     #if wxUSE_IOSTREAMH
 354         #include <iostream.h>
 355     #else
 356         #include <iostream>
 357     #endif
 358 #endif // wxUSE_IOSTREAMH
 359
 360 // ----------------------------------------------------------------------------
 361 // set up memory debugging macros
 362 // ----------------------------------------------------------------------------
 363
 364 /*
 365     Which new/delete operator variants do we want?
 366
 367     _WX_WANT_NEW_SIZET_WXCHAR_INT             = void *operator new (size_t size, wxChar *fileName = 0, int lineNum = 0)
 368     _WX_WANT_DELETE_VOID                      = void operator delete (void * buf)
 369     _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET      = void operator delete (void *buf, const char *_fname, size_t _line)
 370     _WX_WANT_DELETE_VOID_WXCHAR_INT           = void operator delete(void *buf, wxChar*, int)
 371     _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT       = void *operator new[] (size_t size, wxChar *fileName , int lineNum = 0)
 372     _WX_WANT_ARRAY_DELETE_VOID                = void operator delete[] (void *buf)
 373     _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT     = void operator delete[] (void* buf, wxChar*, int )
 374 */
 375
 376 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 377
 378 // All compilers get this one
 379 #define _WX_WANT_NEW_SIZET_WXCHAR_INT
 380
 381 // Everyone except Visage gets the next one
 382 #ifndef __VISAGECPP__
 383     #define _WX_WANT_DELETE_VOID
 384 #endif
 385
 386 // Only visage gets this one under the correct circumstances
 387 #if defined(__VISAGECPP__) && __DEBUG_ALLOC__
 388     #define _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
 389 #endif
 390
 391 // Only VC++ 6.0 and CodeWarrior compilers get overloaded delete that matches new
 392 #if ( defined(__VISUALC__) && (__VISUALC__ >= 1200) ) || (defined(__MWERKS__) && (__MWERKS__ >= 0x2400))
 393     #define _WX_WANT_DELETE_VOID_WXCHAR_INT
 394 #endif
 395
 396 // Now see who (if anyone) gets the array memory operators
 397 #if wxUSE_ARRAY_MEMORY_OPERATORS
 398
 399     // Everyone except Visual C++ (cause problems for VC++ - crashes)
 400     #if !defined(__VISUALC__)
 401         #define _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
 402     #endif
 403
 404     // Everyone except Visual C++ (cause problems for VC++ - crashes)
 405     #if !defined(__VISUALC__)
 406         #define _WX_WANT_ARRAY_DELETE_VOID
 407     #endif
 408
 409     // Only CodeWarrior 6 or higher
 410     #if defined(__MWERKS__) && (__MWERKS__ >= 0x2400)
 411         #define _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT
 412     #endif
 413
 414 #endif // wxUSE_ARRAY_MEMORY_OPERATORS
 415
 416 #endif // WXDEBUG && wxUSE_MEMORY_TRACING
 417
 418
 419 // ----------------------------------------------------------------------------
 420 // wxObject: the root class of wxWindows object hierarchy
 421 // ----------------------------------------------------------------------------
 422
 423 class WXDLLEXPORT wxObject
 424 {
 425     DECLARE_ABSTRACT_CLASS(wxObject)
 426
 427 private:
 428     void InitFrom(const wxObject& other);
 429
 430 public:
 431     wxObject() { m_refData = NULL; }
 432     virtual ~wxObject() { UnRef(); }
 433
 434     wxObject(const wxObject& other)
 435         {
 436             InitFrom(other);
 437         }
 438
 439     wxObject& operator=(const wxObject& other)
 440     {
 441         if ( this != &other )
 442         {
 443             UnRef();
 444             InitFrom(other);
 445         }
 446         return *this;
 447     }
 448
 449     bool IsKindOf(wxClassInfo *info) const;
 450
 451
 452     // Turn on the correct set of new and delete operators
 453
 454 #ifdef _WX_WANT_NEW_SIZET_WXCHAR_INT
 455     void *operator new ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 );
 456 #endif
 457
 458 #ifdef _WX_WANT_DELETE_VOID
 459     void operator delete ( void * buf );
 460 #endif
 461
 462 #ifdef _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
 463     void operator delete ( void *buf, const char *_fname, size_t _line );
 464 #endif
 465
 466 #ifdef _WX_WANT_DELETE_VOID_WXCHAR_INT
 467     void operator delete ( void *buf, const wxChar*, int );
 468 #endif
 469
 470 #ifdef _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
 471     void *operator new[] ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 );
 472 #endif
 473
 474 #ifdef _WX_WANT_ARRAY_DELETE_VOID
 475     void operator delete[] ( void *buf );
 476 #endif
 477
 478 #ifdef _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT
 479     void operator delete[] (void* buf, const wxChar*, int );
 480 #endif
 481
 482
 483 #if wxUSE_STD_IOSTREAM && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT)
 484     virtual void Dump(wxSTD ostream& str);
 485 #endif
 486
 487     // ref counted data handling methods
 488
 489     // get/set
 490     wxObjectRefData *GetRefData() const { return m_refData; }
 491     void SetRefData(wxObjectRefData *data) { m_refData = data; }
 492
 493     // make a 'clone' of the object
 494     void Ref(const wxObject& clone);
 495
 496     // destroy a reference
 497     void UnRef();
 498
 499 protected:
 500     // ensure that our data is not shared with anybody else: if we have no
 501     // data, it is created using CreateRefData() below, if we have shared data
 502     // it is copied using CloneRefData(), otherwise nothing is done
 503     void AllocExclusive();
 504
 505     // both methods must be implemented if Unshare() is used, not pure virtual
 506     // only because of the backwards compatibility reasons
 507
 508     // create a new m_refData
 509     virtual wxObjectRefData *CreateRefData() const;
 510
 511     // create a new m_refData initialized with the given one
 512     virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
 513
 514     wxObjectRefData *m_refData;
 515 };
 516
 517 // ----------------------------------------------------------------------------
 518 // wxObjectRefData: ref counted data meant to be stored in wxObject
 519 // ----------------------------------------------------------------------------
 520
 521 class WXDLLEXPORT wxObjectRefData
 522 {
 523     friend class wxObject;
 524
 525 public:
 526     wxObjectRefData() : m_count(1) { }
 527     virtual ~wxObjectRefData() { }
 528
 529     int GetRefCount() const { return m_count; }
 530
 531 private:
 532     int m_count;
 533 };
 534
 535
 536 inline wxObject *wxCheckDynamicCast(wxObject *obj, wxClassInfo *classInfo)
 537 {
 538     return obj && obj->GetClassInfo()->IsKindOf(classInfo) ? obj : NULL;
 539 }
 540
 541 // ----------------------------------------------------------------------------
 542 // more debugging macros
 543 // ----------------------------------------------------------------------------
 544
 545 #ifdef __WXDEBUG__
 546     #ifndef WXDEBUG_NEW
 547         #define WXDEBUG_NEW new(__TFILE__,__LINE__)
 548     #endif
 549 #else // !__WXDEBUG__
 550     #define WXDEBUG_NEW new
 551 #endif
 552
 553 // Redefine new to be the debugging version. This doesn't work with all
 554 // compilers, in which case you need to use WXDEBUG_NEW explicitly if you wish
 555 // to use the debugging version.
 556
 557 #if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS
 558     #define new new(__TFILE__,__LINE__)
 559 #endif
 560
 561 #endif  // _WX_OBJECTH__
 562